Coefficient RR Handlebar
The Coefficient RR handlebar is purpose-built for riders that race/go fast frequently on pavement and/or gravel. It's also ridiculously comfortable.
Free computer mount included with every RR. Please select below.
Please also add accessories as desired. Garmin in image not included.
The RR's patent pending integrated computer bridge is not just a perch for your favourite data capturing gizmo, it offers hand placement options to powerfully and comfortably lift you over a steep climb AND/OR stretch-out and narrow-up to bridge a gap or breakaway from the pack. Designed within UCI and ITU rules, the RR will change your cycling experience for the better.
Both the AR and RR feature Coefficient aero-ergonomics that make it easier to ride faster on the noon ride or an all-day ride. With a deeper drop and increased rigidity, the RR promotes a more aggressive, aerodynamic riding position. Our patented Coefficient SWOPE (sloping, sweeping bar tops) carries over from the AR to relax your upper body and improve respiratory and neuromuscular function.
The RR Bar is Shimano Di2 compatible. It not only accepts the bar end junction, it includes exit holes for remote shifter buttons in four locations (2 each side) on the underside of the tops.
Computer Compatibility
In partnership with Bar Fly Bike, the Coefficient RR includes your choice of the following cycling computer mounts: Garmin, Wahoo, Lezyne, Polar, Cateye, Bryton, Joule, Hammerhead, Magellan and Mio. We also offer a GoPro camera mount that attaches to the underside of the computer bridge. Replacement mounts can be ordered as well.
Lightweight Materials & Dependability
When comparing handlebar weights keep in mind that the average off-the-front computer mount weighs in at 30 to 40 grams. The Coefficient RR is moulded using Toray unidirectional carbon fibre and tested to the highest ISO international standards for professional road and mountain bike racing.
Proportional Sizing & Specifications
| Available Sizes (C to C) | 38cm | 40cm | 42cm | 44cm |
| Clamp Diameter | 31.8mm | |||
| Drop | 127mm | |||
| Reach | 77mm | |||
| SWOPE (sweep + slope) | Sweep: 12 degrees / Slope 15 degrees | |||
| Flare | 7 degrees | |||
| Drop Width (C to C) | 40cm | 42cm | 44cm | 46cm |
| Stem to Computer (C to C) | 87mm | |||
| Clamp Area Width | 56mm | |||
| Aero Top Width | 43mm | 45mm | 47mm | 49mm |
| Weight (grams) | 310 | 315 | 320 | 325 |
Installation Instructions
DOWNLOAD THE RR INSTALLATION INSTRUCTIONS.